pinctrl: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 23 insertions, 25 deletions

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index f402eff2867a..07773c70c12c 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -422,9 +422,9 @@ static const struct of_device_id exynos_wkup_irq_ids[] = {
 /* interrupt handler for wakeup interrupts 0..15 */
 static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
 {
-	struct exynos_weint_data *eintd = irq_get_handler_data(irq);
+	struct exynos_weint_data *eintd = irq_desc_get_handler_data(desc);
 	struct samsung_pin_bank *bank = eintd->bank;
-	struct irq_chip *chip = irq_get_chip(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int eint_irq;
 
 	chained_irq_enter(chip, desc);
@@ -454,8 +454,8 @@ static inline void exynos_irq_demux_eint(unsigned long pend,
 /* interrupt handler for wakeup interrupt 16 */
 static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = irq_get_chip(irq);
-	struct exynos_muxed_weint_data *eintd = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct exynos_muxed_weint_data *eintd = irq_desc_get_handler_data(desc);
 	struct samsung_pinctrl_drv_data *d = eintd->banks[0]->drvdata;
 	unsigned long pend;
 	unsigned long mask;
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
index 7a77eae60b83..5d7b6112fc7e 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -243,7 +243,7 @@ static struct irq_chip s3c2410_eint0_3_chip = {
 static void s3c2410_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
-	struct s3c24xx_eint_data *eint_data = irq_get_handler_data(irq);
+	struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
 	unsigned int virq;
 
 	/* the first 4 eints have a simple 1 to 1 mapping */
@@ -297,9 +297,9 @@ static struct irq_chip s3c2412_eint0_3_chip = {
 
 static void s3c2412_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = irq_get_chip(irq);
+	struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
 	struct irq_data *data = irq_desc_get_irq_data(desc);
-	struct s3c24xx_eint_data *eint_data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	unsigned int virq;
 
 	chained_irq_enter(chip, desc);
@@ -357,11 +357,11 @@ static struct irq_chip s3c24xx_eint_chip = {
 	.irq_set_type	= s3c24xx_eint_type,
 };
 
-static inline void s3c24xx_demux_eint(unsigned int irq, struct irq_desc *desc,
+static inline void s3c24xx_demux_eint(struct irq_desc *desc,
 				      u32 offset, u32 range)
 {
-	struct irq_chip *chip = irq_get_chip(irq);
-	struct s3c24xx_eint_data *data = irq_get_handler_data(irq);
+	struct s3c24xx_eint_data *data = irq_desc_get_handler_data(desc);
+	struct irq_chip *chip = irq_desc_get_irq_chip(desc);
 	struct samsung_pinctrl_drv_data *d = data->drvdata;
 	unsigned int pend, mask;
 
@@ -374,7 +374,7 @@ static inline void s3c24xx_demux_eint(unsigned int irq, struct irq_desc *desc,
 	pend &= range;
 
 	while (pend) {
-		unsigned int virq;
+		unsigned int virq, irq;
 
 		irq = __ffs(pend);
 		pend &= ~(1 << irq);
@@ -390,12 +390,12 @@ static inline void s3c24xx_demux_eint(unsigned int irq, struct irq_desc *desc,
 
 static void s3c24xx_demux_eint4_7(unsigned int irq, struct irq_desc *desc)
 {
-	s3c24xx_demux_eint(irq, desc, 0, 0xf0);
+	s3c24xx_demux_eint(desc, 0, 0xf0);
 }
 
 static void s3c24xx_demux_eint8_23(unsigned int irq, struct irq_desc *desc)
 {
-	s3c24xx_demux_eint(irq, desc, 8, 0xffff00);
+	s3c24xx_demux_eint(desc, 8, 0xffff00);
 }
 
 static irq_flow_handler_t s3c2410_eint_handlers[NUM_EINT_IRQ] = {
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index 41050f4c67dc..8700f0c9eee1 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -410,8 +410,8 @@ static const struct irq_domain_ops s3c64xx_gpio_irqd_ops = {
 
 static void s3c64xx_eint_gpio_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct irq_chip *chip = irq_get_chip(irq);
-	struct s3c64xx_eint_gpio_data *data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct s3c64xx_eint_gpio_data *data = irq_desc_get_handler_data(desc);
 	struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
 
 	chained_irq_enter(chip, desc);
@@ -599,11 +599,10 @@ static struct irq_chip s3c64xx_eint0_irq_chip = {
 	.irq_set_type	= s3c64xx_eint0_irq_set_type,
 };
 
-static inline void s3c64xx_irq_demux_eint(unsigned int irq,
-					struct irq_desc *desc, u32 range)
+static inline void s3c64xx_irq_demux_eint(struct irq_desc *desc, u32 range)
 {
-	struct irq_chip *chip = irq_get_chip(irq);
-	struct s3c64xx_eint0_data *data = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct s3c64xx_eint0_data *data = irq_desc_get_handler_data(desc);
 	struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
 	unsigned int pend, mask;
 
@@ -616,11 +615,10 @@ static inline void s3c64xx_irq_demux_eint(unsigned int irq,
 	pend &= range;
 
 	while (pend) {
-		unsigned int virq;
+		unsigned int virq, irq;
 
 		irq = fls(pend) - 1;
 		pend &= ~(1 << irq);
-
 		virq = irq_linear_revmap(data->domains[irq], data->pins[irq]);
 		/*
 		 * Something must be really wrong if an unmapped EINT
@@ -636,22 +634,22 @@ static inline void s3c64xx_irq_demux_eint(unsigned int irq,
 
 static void s3c64xx_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
 {
-	s3c64xx_irq_demux_eint(irq, desc, 0xf);
+	s3c64xx_irq_demux_eint(desc, 0xf);
 }
 
 static void s3c64xx_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
 {
-	s3c64xx_irq_demux_eint(irq, desc, 0xff0);
+	s3c64xx_irq_demux_eint(desc, 0xff0);
 }
 
 static void s3c64xx_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
 {
-	s3c64xx_irq_demux_eint(irq, desc, 0xff000);
+	s3c64xx_irq_demux_eint(desc, 0xff000);
 }
 
 static void s3c64xx_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
 {
-	s3c64xx_irq_demux_eint(irq, desc, 0xff00000);
+	s3c64xx_irq_demux_eint(desc, 0xff00000);
 }
 
 static irq_flow_handler_t s3c64xx_eint0_handlers[NUM_EINT0_IRQ] = {